Regulatory and Inspection Manual for Nonmetallic Mineral

Introduction Scope and Content Intended Use of the Manual Industry Overview 2.
1985 (50 FR 31337) and revised on February 14, 1989 (54 FR 6680) and on
June 9, . Jaw or gyratory crushers are usually used for initial reduction,
although . 15x30 centimeters to 213x168 centimeters (6x12 inches to 84x66
inches).